media: docs: add GPLv2 for uAPI guide
Newer uAPI docs should be dual-licensed with both GPL
and GFDL. Add a text adding the GPLv2 license text there,
in order to be coherent with the included docs.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
diff --git a/Documentation/userspace-api/media/index.rst b/Documentation/userspace-api/media/index.rst
index 2c2c96a..b20010f 100644
--- a/Documentation/userspace-api/media/index.rst
+++ b/Documentation/userspace-api/media/index.rst
@@ -37,3 +37,20 @@
any later version published by the Free Software Foundation, with no
Invariant Sections. A copy of the license is included in the chapter
entitled "GNU Free Documentation License".
+
+Please notice that some documents inside the media userspace API,
+when explicitly mentioned on its source code, are dual-licensed
+with GNU Free Documentation License Version 1.1 and with the
+GNU General Public License::
+
+ This documentation is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ For more details see the file COPYING in the source distribution of Linux.